Door and operating mechanism therefor.



L. J. EYTH,

DOOR AND'OPERATING MECHANISM THEREFOR.

APPLICATION FILED JULY8,1910.

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INVENTOR La i/95 COLUMBIA PLANOGRAPHCO" WASHINGTON n. c.

L. J. EYTH.

DOOR AND OPERATING MECHANISM THEREFOR.

APPLIOATIONFILED JULY 8,1910.

1,015,158., Patented Jan. 16,1912.

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COLUMBIA PLANOGRAPH 60., WASHINGTON, D c

UNTTED @TATEE PATENT @FFTQE.

LEWIS J. EYTH, 0F BUTLER, PENNSYLVANIA, ASSIGNOR OF ONE-FOURTH TO R. L.

IDE HAVEN AND ONE-FOURTH TO W. VANIA.

J. ALLISON, BOTH OF BUTLER, PENNSYL- IDOOR AND OPERATING MECHANISM THEREFOR.

Specification of Letters Patent.

Patented Jan. 16,1912.

Application filed July 8, 1910. Serial No. 571,066.

To all whom it may concern:

Be it known that I, LEWIS J. EYTH, a citizen of the United States of America, residin at Butler, in the county of Butler and @tate of Pennsylvania, have invented certain new and useful Improvements in Doors and Operating Mechanism Therefor, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to doors and operating mechanism therefor for cars, wagons, and other vehicles, used for the transportation of materials in bulk, such as coal, grain, coke, ore and other material which can be discharged from the car or other vehicle by dumping.

The invention is particularly designed for use in connection with dump cars, and the object of the invention is to provide doors that can be easily and quickly opened, and when in a closed position, positively locked against accidental displacement.

Another object of the invention is to furnish a car with movable doors arranged to open by gravity when released, by the weight of the load contained within the car.

A further object of the invention is to provide a dump car with doors preferably so arranged that when the doors are in a closed position, the load of the cars will be directed against the doors in such a man-- ner as to malntaln the doors in a closed position.

A still further object of the invention is to provide a toggle and link connection for moving a door, the toggle and link connection being constructed whereby it will auto matically lock the door in a closed position after the door has been elevated.

A still further object of this invention is to provide a door operating mechanism that prising side arms 5 door and door operating mechanism in accordance with this invention, Fig. 2 is a side elevation of a double hopper having a modified form of door and door operating mechanism, Fig. 3 is an enlarged elevation of the door operating mechanism, partly in section and shown in two released positions by dotted lines and dot and dash lines. Fig. at is a front elevation of the same, partly broken away and partly in section. Figs. 5 and 6 are elevations of the door operating mechanism illustrating the path of the latter by dotted lines and the position the mechanism assumes when shifted to releasing position, and, Fig. 7 is a section on line EE, Fig. 5.

Like numerals of reference designate corresponding parts throughout the several views.

The reference numeral 1 denotes, by the way of an example, the hopper of a dump car and this hopper has one end thereof provided with hinges 2 for a door 3 adapted to close the discharge opening of the hopper 1 provided with a pocket 1 as shown in Figs. 5 and 6. The door 3 moves in a substantially vertical direct-ion and when lowering moves sufficiently to permit of the passage of the door operating mechanism when the latter is being shifted to releasing position for the door. The free or opposite end of the door has the under side thereof provided with a depending bracket 4E comconnected by an an gularly disposed web 6. Loosely mounted between the lower ends of the arms 5 by a transverse pin 7 is a hook-shaped supporting member 8 having the lower end thereof segment-shaped, as at 9 and provided with a segment-shaped slot 10 to receive the pin 7 The extreme lower end of the member 8 i provided with a depending latch 11, and the upper end of said member is pivotally connected by pins 12 to links 13 arranged in parallelism upon opposite sides of the supporting member 8. The lower ends of the link are pivotally connected by a transverse pin 14 to the outer side of a crank 15 mounted upon a rectangular shaft 16 having cylindrical portions journaled in bearings 17 carried by the end of the hopper 1. The lower end of the crank 15 is provided with an oblong opening or slot 18 to receive the pin 14 and the front side thereof has a keeper 19 to receive the depending latch 11.

With the door 3 in a closed position, the

upper hook-shaped end of the supporting member 8 engages over the top of the crank 15, while the latch 11 of the supporting member 8 is held by the keeper 19, the door within being retained in a closed position.

To open the door, a handle, wrench or other instrument (not shown) can be placed upon the end of the shaft 16 and the shaft rotated, whereby the supporting member 8, crank 15 and links 13 will be swung outwardly until the pin 7 engages in the upper end' of the slot 10, as best shown in Fig. 5. As the shaft continues to move, the crank 15 will be carried therewith and as the outward movement of the member 8 is arrested, the keeper 19 will be moved out of engagement with the latch 11 as clearly shown in Fig. 6. As this movement occurs the upper hook-shaped end of the supporting member 8 rides over and off of the upper end of the crank 15, this being accomplished by the pin 14 of the links 13 shifting to the upper end of the slot 18. After the upper hook-shaped end of the member 8 has been moved off center or over the shaft 16, the weight of the load within the hopper 1 is sufficient to immediately swing the .end of the door downwardly and discharge the contents of the hopper, the weight of the load causing the locking mechanism to move in the path as illustrated in Figs. 5 and 6. WVhen the door is released, the weight of the load will cause the mechanism to assume the dotted line position as illustrated in the lower portion of Fig. 3. The door 3 will be held by.

the pin 7 engaging in the upper end of the slot 10 of the member 8. To close the door, the shaft 16 is rotated in the opposite direction and the door immediately starts to close. As the crank 15 is carried upwardly the pin 14 shifts within the slot 18 of said crank and the links 13 again ride into engagement with the shaft 16, while the hookshaped end of the supporting member 8 is gradually brought over the upper end of the crank 15, and as the crank assumes a vertical position the supporting member 8 drops into place with the latch 11 thereof in the keeper 19.

In Fig. 2 of the drawings there is illus' trated a modification of the invention wherein the hinges 2 are dispensed with and the door operating mechanism used at both ends of the door. 'It is in this connect-ion that it is preferable to provide the inner side of the door 3 with an inverted V-shaped deflector 20 for deflecting material from the door after the door has been lowered, thus preventing material from remaining or accumulating upon the door.

From the foregoing it will be observed that the door is practically hooked upon the shaft 16, that the hook is located whereby the weight of the contents of the hopper 1 cannot accidentally open the door or release the hook-shaped end of the supporting member 8, and that the width of the door determines the number of looking or operating devices used in connection therewith.

While in the drawing there is illustrated a preferred embodiment of the invention, it is to be understood that the structural elements thereof can be varied or changed without departing from the scope of the appended claims.

lVhat I claim is 1. The combination with a door, and a revolvable-shaft, of a depending bracket carried by said door, a crank mounted upon said shaft, a supporting member loosely connected to said bracket and having a hook shaped end adapted to-engage the upper end of said crank, links pivotally connecting the hook-shaped end of said member to'the lower end of said crank, and means carried by the lower end of said crank and adapted to engage said member for locking said member in engagement with said crank.

2. The combination with a door, and a revolvable shaft, of a depending bracket carried by said door, a crank mounted upon said shaft, a supporting member loosely connected to said bracket and having a hookshaped end adapted to engage the upper end of said crank, a latch carried by said mem ber, a keeper carried by said crank and 1 adapted to receive said latch, and means for movably connecting the hook-shaped end of sald supporting member to the upper end of said crank.

3. The combination with a door, and a revolvable shaft, of a depending bracket carried by said door, a crank mounted upon said shaft, a supporting member having a segment-shaped end provided with a slot and a hook-shaped end adapted to engage the upper end of said crank, a pin carried by said bracket and extending through the slot of the segment-shaped end of said member, links arranged in parallelism and connecting the hook-shaped end of said member to the outer end of said crank, a latch carried by the segment-shaped end of said member, and a keeper carried by the outer end of said crank and adapted to receive said latch, substantially as described.

In testimony whereof I afliX my signature in the presence of two witnesses.

LEWVIS J. EYTH. Vitnesses GEO. E. HEINEMAN, R. L. DE HAVEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 

